Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Factor must come from the specific yeast product or tested recipe. This does not assume all fresh, active-dry or instant products are interchangeable.
Example Calculation
- Original yeast mass: 3 g
- Target mass per original mass: 3
If the chosen replacement factor is 3, replace 3 g with 9 g of the target yeast.
Frequently asked questions
How do I use this calculator?
Enter original yeast mass, target mass per original mass. The result updates automatically. Use Reset to restore the example values.
What method does it use?
replacement yeast mass=original mass × supplied activity-equivalence factor.. Factor must come from the specific yeast product or tested recipe. This does not assume all fresh, active-dry or instant products are interchangeable.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.